The beginning of winter in 2025, deep in the Xing'an Mountains. Seventy-year-old Tong Shanhai ate pickles and drank low-quality liquor in a dilapidated forest guarding hut. The wind and snow roared outside, and the inside was as cold as an ice cellar. He stroked a yellowed photo of his wife Park Yuhui when she was young, and burst into tears. Memories came flooding back: his wife died young due to long-term fatigue and sadness; his six daughters were forced away by him and there was no news; his adopted nephew Tong Dongdong took away all his savings and disappeared. He fell to the ground drunk, and before he became unconscious, he made his final confession: "Yuhui... Girls... I can't help you..."